Biological sample water bath

Abstract

This application relates to the technical field of biological sample testing equipment, and provides a biological sample water bath. The biological sample water bath includes at least: an adjacent and connected testing chamber and a replenishment chamber, a heating pipe extending through the bottom of both chambers, a water replenishment channel horizontally connected between the two chambers, a water replenishment switch device placed in the testing chamber, and a first water level monitoring device. The water replenishment channel is located above the heating pipe. The water replenishment switch device is connected to one port of the water replenishment channel and its size matches the port. The water replenishment channel is located above the designed water level of the testing chamber. The first water level monitoring device is electrically connected to the water replenishment switch device, monitors the current water level of the testing chamber, and sends an execution signal to the water replenishment switch device to open or close the water replenishment channel. The solution provided in this application can ensure a continuously stable preheating environment within the testing chamber.

Description

Technical Field

[0001] This application relates to the technical field of biological sample testing equipment, and more specifically, to a biological sample water bath. Background Technology

[0002] Biological sample water baths are commonly used devices for preheating biological samples during testing. Existing biological sample water baths are designed with a heating element fixed to the bottom and at least one test tube rack. When the biological sample water bath is in operation, water needs to be pre-filled to a preset level. With the heating function activated, the water in the bath is heated through the heating element to bring the biological samples in the test tubes to a preheated temperature. Once the biological samples reach the preset temperature and / or are maintained at that temperature for a set time, the preheating process is complete.

[0003] However, during the preheating process in a biosample water bath, the water level needs frequent monitoring due to evaporation, and water must be replenished promptly when the level drops. Currently, replenishing water in biosample water baths is generally done manually. However, since water evaporation occurs continuously, if water is not replenished in time and the water level remains below the design level for an extended period, uneven preheating of the biological samples will occur. Therefore, operators need to constantly monitor changes in the water level within the biosample water bath. To prevent the water level from falling below the design level due to insufficient replenishment, the common practice is to replenish the water to a level higher than the design level; however, this can easily pose a risk of contamination to the biological samples.

[0004] Therefore, existing biological sample water baths cannot maintain the designed water level for a long time. Moreover, with the output heat of the heating tube being constant, the preheating temperature of the biological sample water bath changes due to the change in the water level inside the bath, making the preheating effect unstable and thus easily affecting the subsequent testing results of the biological samples in the test tubes. Summary of the Invention

[0005] To address the problem that the water level in current biological sample water baths is difficult to maintain at the design level during the water bathing process, this application provides a biological sample water bath.

[0006] The biological sample water bath provided in this application includes at least: an adjacent and connected test chamber and a supply chamber, a heating pipe penetrating the bottom of the test chamber and the supply chamber, a water supply channel horizontally connected between the test chamber and the supply chamber, and a water supply switch device placed in the test chamber, wherein the water supply channel is located above the heating pipe;

[0007] The water replenishment switch device is connected to one of the ports of the water replenishment channel, and the size of the water replenishment switch device matches that port. The water replenishment channel is located above the design water level of the test chamber.

[0008] The biological sample water bath further includes: a first water level monitoring device, which is electrically connected to the water replenishment switch device. The first water level monitoring device monitors the current water level of the test chamber, obtains the corresponding monitoring signal, and sends an execution signal to the water replenishment switch device to open or close the water replenishment channel.

[0009] In one optional embodiment, the design water level includes: a first design water level and a second design water level, wherein the first design water level is higher than the second design water level;

[0010] The first water level monitoring device receives a monitoring signal indicating that the current water level of the test chamber is at the first design water level, and sends a signal to the water supply switch device to close the water supply channel; the first water level monitoring device receives a monitoring signal indicating that the current water level of the test chamber is at the second design water level, and sends an execution signal to the water supply switch device to open the water supply channel.

[0011] In an optional embodiment, the water replenishment switch device is connected to the outlet of the water replenishment channel located on one side of the inspection box, and the size of the water replenishment switch device matches that of the outlet.

[0012] In an optional embodiment, the water replenishment switch device includes: a water replenishment cover, which is disposed corresponding to the outlet, the diameter of the water replenishment cover is larger than the diameter of the outlet, and the water replenishment cover is rotated to open or close the outlet.

[0013] In an alternative embodiment, the water inlet cover is rotatably connected to the outlet above the outlet.

[0014] In an optional embodiment, the water replenishment switch device further includes: an electromagnet plate, the electromagnet plate being fixed around the edge of the water replenishment cover extending beyond the outlet, the electromagnet plate being electrically connected to the first water level monitoring device, the edge of the outlet being made of a magnetically attractive material, and the water replenishment cover being made of a lightweight material.

[0015] In an optional embodiment, the water replenishment switch device further includes: a sealing gasket, which is matched with the outlet and the water replenishment door cover respectively, and is attached to the side of the water replenishment door cover facing the outlet;

[0016] The sealing gasket is an annular grooved soft gasket, the inner diameter of the sealing gasket is equal to the diameter of the outlet and corresponds to the edge of the outlet; the outer diameter of the sealing gasket is equal to the diameter of the water inlet cover.

[0017] The electromagnet sheet is wrapped inside the annular groove of the sealing gasket.

[0018] In an optional embodiment, a partition is provided between the inspection box and the supply box, and a sealing ring is provided at the connection between the heating tube and the partition.

[0019] In an optional embodiment, the biological sample water bath further includes: a second water level monitoring device and a water injection device electrically connected, wherein the second water level monitoring device is electrically connected to the first water level monitoring device; the water inlet of the water injection device is located inside the supply tank.

[0020] The second water level monitoring device receives the current water level monitoring signal of the supply tank and the switch signal of the water supply switch device issued by the first water level monitoring device, and sends a water injection switch signal to the water injection device.

[0021] In an optional embodiment, the replenishment water level of the replenishment tank is located above the water replenishment channel, and the volume of the replenishment tank between the replenishment water level and the center point of the water replenishment channel is greater than the volume of the inspection tank between the first design water level and the second design water level.

[0022] The biological sample water bath provided in this application has the following technical advantages:

[0023] The biological sample water bath provided in this application embodiment, based on the addition of a replenishment tank connected to the testing tank, and a water replenishment channel horizontally connected between the testing tank and the replenishment tank, and a water replenishment switch device located at one end of the water replenishment channel to control the opening or closing of the water replenishment channel, ensures that the water level inside the testing tank remains close to the design water level J even if there are changes, thus ensuring that the immersion height of the test tubes inside the testing tank is basically stable. Furthermore, the simultaneous heating of the water in both the testing tank and the replenishment tank through heating pipes at the bottom of both tanks prevents significant fluctuations in water temperature due to changes in the current water level, thereby ensuring that the reaction environment for the pretreatment of biological samples inside the testing tank is basically constant. This ensures that the pretreatment effect is more in line with expectations and that the pretreatment reaction can be completed within a preset time.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice. Attached Figure Description

[0025] The above and / or additional aspects and advantages will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0026] Figure 1 A cross-sectional structural diagram of a biological sample water bath provided for one embodiment of this application;

[0027] Figure 2 for Figure 1 A magnified structural diagram of the circle I region in the diagram;

[0028] Figure 3 A schematic diagram of the electrical connection structure for controlling the opening and closing of a water supply switch device in a biological sample water bath provided in one embodiment of this application;

[0029] Figure 4 A schematic diagram of the electrical connection structure for controlling the opening and closing of a water replenishment switch device in a biological sample water bath provided in another embodiment of this application. Detailed Implementation

[0030] The present application will now be further described with reference to the accompanying drawings and exemplary embodiments, wherein all like reference numerals in the drawings refer to the same parts. Furthermore, detailed descriptions of known technologies that are unnecessary to illustrate the features of the present application are omitted.

[0031] Currently used biological sample water baths consist of two independent testing chambers and an equipment chamber. The testing chamber has a heating element installed at its bottom. The testing chamber is permanently filled with a water bath medium, typically tap water or purified water. The heating element heats the water in the testing chamber. The heating element is connected to a heating device located in the equipment chamber. The equipment chamber and the testing chamber are spatially separated to ensure the safe operation of the heating device.

[0032] The water in the biological sample water bath currently in use evaporates constantly due to heating, and requires manual monitoring and timely replenishment of water. This makes it difficult to maintain the designed water level in the biological sample water bath, resulting in insufficient heating of biological samples due to too low a water level, or easy contamination due to too high a water level.

[0033] refer to Figure 1-4 , Figure 1 This is a schematic cross-sectional view of a biological sample water bath provided in one embodiment of this application. Figure 2 for Figure 1 An enlarged structural diagram of region I in circle 1. Figure 3 This is a schematic diagram of the electrical connection structure for controlling the opening and closing of a water replenishment switch device in a biological sample water bath, provided as an embodiment of this application. Figure 4 A schematic diagram of the electrical connection structure for controlling the opening and closing of a water replenishment switch device in a biological sample water bath provided in another embodiment of this application.

[0034] To address the aforementioned issues, this application provides a biological sample water bath 100. The biological sample water bath 100 provided in this application includes at least two adjacent and connected components: a testing chamber 110 and a replenishment chamber 130. The replenishment chamber 130 is used to pre-store and heat the medium liquid supplied to the testing chamber 110. The side of the replenishment chamber 130 relative to the testing chamber 110 is a device housing 120. Between the testing chamber 110 and the replenishment chamber 130, a water replenishment channel 150 connecting the two spaces is also included. The inlet 151 of the water replenishment channel 150 is located on the side of the replenishment chamber 130, and the outlet 152 is located on the side of the testing chamber 110. A partition 101 is provided between one port of the water replenishment channel 150, namely, the inlet 151 or the outlet 152. Furthermore, the water replenishment channel 150 is excavated perpendicular to the partition 101. At both ends of the water replenishment channel 150, namely the inlet 151 of the replenishment box 130 and the outlet 152 of the inspection box 110, are respectively located on both sides of the partition 101.

[0035] In this embodiment, a cover 102 is provided on the top of the testing box 110 and the supply box 130. The cover 102 covers both boxes at the same time, reducing the rate of heat loss from the boxes and ensuring the water bath effect of the biological samples.

[0036] The biological sample water bath 100 is also equipped with a water replenishment switch device 160. The size of the water replenishment switch device 160 is matched with the inlet 151 or outlet 152 connected to the water replenishment channel 150. The water replenishment switch device 160 is used to control the opening and closing of the water replenishment channel 150 to adjust the amount of water replenished from the replenishment tank 130 to the test tank 110.

[0037] Under normal operating conditions, when the water level in the test chamber 110 is lower than the design water level J, the replenishment tank 130 can replenish water to the test chamber 110 through the water replenishment channel 150 to ensure that the water level in the test chamber 110 can be continuously maintained at the design water level J. The water replenishment channel 150 is located above the design water level J, which is located above the support plate 104 used to place test tubes and test tube racks.

[0038] The biological sample water bath 100 provided in this embodiment also includes a first water level monitoring device 170, which is electrically connected to a water replenishment switch device 160. When the first water level monitoring device 170 detects that the current water level of the test chamber 110 is lower than the design water level J, and receives the corresponding monitoring signal, it generates a signal to open the water replenishment switch device 160 and sends the opening signal to the water replenishment switch device 160, causing the water replenishment switch device 160 to open, and the water replenishment channel 150 to connect the supply chamber 130 and the test chamber 110, so that the supply chamber 130 can replenish water to the test chamber 110. During the water replenishment process, the first water level monitoring device 170 continuously monitors the current water level of the test tank 110. If the water level reaches the design water level J, a signal to close the water replenishment switch device 160 is generated and sent to the water replenishment switch device 160 to control the water replenishment switch device 160 to close, thereby cutting off the water replenishment channel 150 from the supply tank 130 to the test tank 110 and stopping the replenishment of water to the test tank 110.

[0039] Furthermore, the design water level J may include a first design water level J1 and a second design water level J2, both of which are above the water level of the water supply channel 150, and the first design water level J1 is higher than the second design water level J2. In this embodiment, the first water level monitoring device 170 is also located near and above the first design water level J1 to accurately monitor changes in water level.

[0040] During the process of replenishing water from the supply tank 130 to the inspection tank 110, when the current water level of the inspection tank 110 reaches the first design water level J1, the first water level monitoring device 170 obtains a monitoring signal that the current water level has reached the first design water level J1 based on the monitoring results, and sends a signal to the water supply switch device 160 to close the channel based on the monitoring signal, so that the water supply switch device 160 closes with the inlet 151 or the outlet 152, closes the water supply channel 150, so as to stop the supply tank 130 from replenishing water to the inspection tank 110.

[0041] During the operation of the test chamber 110, the water volume inside the test chamber 110 decreases due to evaporation. When the second design water level J2 is reached, the first water level monitoring device 170 obtains a monitoring signal indicating that the current water level has reached the second design water level J2 based on the monitoring results, and sends a signal to the water replenishment switch device 160 to open the water replenishment channel 150 based on the monitoring signal. This causes the water replenishment switch device 160 to open the outlet 152, and the water replenishment channel 150 connects the supply tank 130 and the test chamber 110, so as to realize the supply tank 130 to replenish water to the test chamber 110. In this embodiment, the reference water level for the switch of the water replenishment switch device 160 is set to a high first design water level J1 and a low second design water level J2. This avoids the monitoring being affected by water surface fluctuations, which in turn affects the switch control of the water replenishment switch device 160. Furthermore, the indicators for the opening and closing control of the water replenishment switch device 160 are set at the two design water levels, which avoids frequent opening and closing of the water replenishment switch device 160 and helps ensure that the water replenishment switch device 160 can operate stably for a long time.

[0042] Taking a biological sample water bath 100 with internal dimensions of 460×450×400mm as an example, considering that the water surface of the test tube cannot approach the mouth of the test tube during the water bath preset process, in this embodiment, the distance between the first design water level J1 and the second design water level J2 is set to 1cm.

[0043] In addition, to improve the controllability of the water supply volume from the replenishment tank 130 to the testing tank 110 and the water temperature inside the testing tank 110, a narrow water supply channel 150 is provided. This allows for timely water replenishment while maintaining a relatively slow flow rate to ensure the water state inside the testing tank 110 remains stable, preventing any impact on the water bath effect of the biological samples. Specifically, the diameter of the water supply channel 150 is set to be between 2% and 3% of the internal height. Specifically, the diameter of the water supply channel 150 and its outlet 152 are both 1 cm.

[0044] In addition, in this embodiment, the heating pipe 140 passes through the bottom of the partition 101 and runs through the bottom of the test chamber 110 and the supply chamber 130, so as to conduct heat to the water in the two chambers simultaneously. This ensures that the temperature of the water supplied by the supply chamber 130 to the test chamber 110 is the same as the original temperature of the water in the test chamber 110. This avoids the problem of fluctuations in the water temperature inside the test chamber 110 caused by water replenishment, which would affect the preheating treatment effect of the biological samples inside the chamber. It also avoids the problem of prolonged preheating treatment time due to fluctuations in water temperature.

[0045] A sealing ring 103 is provided at the part of the heating pipe 140 that passes through the partition 101, that is, at the connection between the heating pipe 140 and the partition 101, so that the inspection box 110 and the supply box 130 are isolated from each other at the connection of the heating pipe 140 passing through the partition 101, so as to prevent the water in the two boxes from communicating at this point, which would make it difficult for the water supply channel 150 and the water supply switch device 160 to control the water flow between the two boxes.

[0046] The biological sample water bath 100 provided in this application embodiment, based on the addition of a replenishment tank 130 communicating with the test tank 110, and the water replenishment channel 150 horizontally connected between the test tank 110 and the replenishment tank 130, and the control of the opening or closing of the water replenishment channel 150 by a water replenishment switch device 160 located at one end of the water replenishment channel 150, ensures that the water level inside the test tank 110 can be maintained at a level close to the design water level J even if there are changes, thus ensuring that the immersion height of the test tubes inside the test tank 110 is basically stable. Furthermore, the simultaneous heating of the water in both the test tank 110 and the replenishment tank 130 by heating pipes 140 passing through the bottom of the test tank 110 and the replenishment tank 130 ensures that the water temperature will not fluctuate significantly due to changes in the current water level, thereby ensuring that the reaction environment for the pretreatment of biological samples inside the test tank 110 is basically constant, thus ensuring that the pretreatment effect is more in line with expectations and that the pretreatment reaction can be completed within a preset time.

[0047] Based on the embodiments provided above, in this embodiment, the water replenishment switch device 160 is connected to the port of the water replenishment channel 150 located on the side of the inspection box 110, and the size of the water replenishment switch device 160 matches the size of the connected port. To more clearly illustrate the inventive concept of this application, an embodiment in which the water replenishment switch device 160 is connected to the outlet 152 is given as an example.

[0048] More specifically, the water supply switch device 160 includes a water supply cover 161. The water supply cover 161 is correspondingly disposed to the outlet 152, and the diameter of the water supply cover 161 is larger than the diameter of the outlet 152. The water supply cover 161 is rotatably connected to the edge of the outlet 152. In this embodiment, the rotatable connection portion 1521 between the water supply cover 161 and the outlet 152 is located above the outlet 152. When the water supply cover 161 is flipped upwards, the outlet 152 opens, as... Figure 2 The i2 state is shown; when the water inlet cover 161 is rotated downwards until it fits against the edge of the outlet 152, the outlet 152 closes, as shown. Figure 2 The i1 state is shown in the figure. In the embodiment, the upper part of the water supply cover 161 is hinged to the partition 101 via the rotating connection 1521, thereby realizing the rotating connection between the water supply cover 161 and the edge of the outlet 152.

[0049] Furthermore, the water replenishment switch device 160 also includes an electromagnet 163. The electromagnet 163 is fixedly surrounding the edge of the water replenishment cover 161. Specifically, it is fixedly surrounding the edge of the outlet 152 of the water replenishment cover 161. The electromagnet 163 is electrically connected to the first water level monitoring device 170. In this embodiment, the edge of the outlet 152 is made of a magnetically attractive material. Based on this design, the magnetism of the electromagnet 163 can be controlled by changing its energization state through the monitoring signal of the first water level monitoring device 170, thereby adjusting the opening and closing of the water replenishment cover 161 and the outlet 152.

[0050] More specifically, the above-described embodiment involving the first design water level J1 and the second design water level J2 is used. The replenishment water level B in the replenishment tank 130 is higher than the first design water level J1 and the second design water level J2. When the water replenishment door cover 161 is opened, the water replenishment channel 150 connects the replenishment tank 130 and the inspection tank 110, and the water in the replenishment tank 130 is replenished to the inspection tank 110 through the water replenishment channel 150. If the water level reaches the first design water level J1, an energizing signal for the electromagnet 163 is generated and sent to the power supply. At this time, the electromagnet 163 is energized, and the electromagnet 163 generates magnetism, causing the water replenishment door cover 161 and the outlet 152 to close, thereby closing the water replenishment channel 150, and the replenishment tank 130 stops replenishing water to the inspection tank 110. Figure 2 The i1 state in the middle.

[0051] During normal operation of the biological sample water bath 100, the first water level monitoring device 170 continuously monitors the water level of the testing chamber 110. When the current water level of the testing chamber reaches the second design water level J2, the first water level monitoring device 170 receives the corresponding monitoring signal, generates and sends a power-off signal to the electromagnet 163, at which point the electromagnet 163 is de-energized and its magnetism disappears. The replenishment water level B of the replenishment tank 130 is located above the replenishment channel 150. Under the action of the water pressure of the replenishment tank 130, the replenishment door cover 161 is opened, the replenishment channel 150 is opened, and the replenishment tank 130 replenishes water to the testing chamber 110. Figure 2 In state i2, due to the weight of the electromagnet 163, the opening angle of the water supply door 161 cannot reach a right angle. This restricts the water flow from the water supply channel 150 to the test chamber 110. Therefore, the water flow at the outlet 152 rests on the partition 101 at the water surface in the test chamber 110, thus preventing the water flow at the outlet 152 from falling near the test tube and contaminating the biological sample.

[0052] Furthermore, the water replenishment switch device 160 also includes a sealing gasket 162. The sealing gasket 162 matches both the outlet 152 and the water replenishment cover 161, and is attached to the side of the water replenishment cover 161 facing the outlet 152. In this embodiment, the sealing gasket 162 is an annular grooved soft gasket. The inner diameter of the sealing gasket 162 is equal to the diameter of the outlet 152 and corresponds to the edge of the outlet 152; the outer diameter of the sealing gasket 162 is equal to the diameter of the water replenishment cover 161 and corresponds to the edge of the water replenishment cover 161. In this embodiment, the electromagnet 163 is an annular sheet structure, wrapped in the annular groove of the sealing gasket 162. When the water level reaches the first design water level J1, an opening signal for the electromagnet 163 is generated and sent to the power supply. The electromagnet 163 is energized and generates magnetism, and the water replenishment cover 161 closes with the outlet 152 under the action of the magnetic field. The sealing gasket 162 surrounds and seals the edge area of ​​the outlet 152, filling the gap between the water supply cover 161 and the outlet 152, blocking the water communication between the inspection tank 110 and the supply tank 130, thereby achieving the purpose of cutting off the water supply channel 150. This better separates the supply tank 130 and the inspection tank 110, ensuring that the water level change in the inspection tank 110 can be kept within a controllable range, and ensuring that the water bath effect meets expectations.

[0053] Furthermore, based on the above embodiments, the biological sample water bath 100 further includes: a second water level monitoring device 180 electrically connected to a water injection device 190, and simultaneously electrically connected to a first water level monitoring device 170.

[0054] The second water level monitoring device 180 receives the monitoring signal of the current water level of the supply tank 130 and the switching signal of the water supply switch device 160 issued by the first water level monitoring device 170, and sends a water injection switch signal to the water injection device 190.

[0055] The process of replenishing water to the supply tank 130 from the water injection device 190 occurs when the water supply channel 150 is closed. Specifically, when the current water level of the supply tank 130 is lower than the replenishment water level B, and the second water level monitoring device 180 detects the closing signal sent by the first water level monitoring device 170 to the water supply switch device 160, the water supply switch device 160 and the outlet 152 are in a closed state based on this closing signal. At this time, the second water level monitoring device 180 sends an opening signal to the water injection device 190 based on the closing signal, so that the water replenishment to the supply tank 130 is carried out in the state of the water supply channel 150 being closed. When the second water level monitoring device 180 detects that the current water level of the supply tank 130 has reached the replenishment water level B, it sends a closing signal to the water injection device 190 at the water inlet 191 to stop external replenishment. The water inlet 191 of the water injection device 190 is located near and above the water replenishment level B to reduce water surface fluctuations caused when water is added to the replenishment tank. The second water level monitoring device 180 is also located near and above the water replenishment level B to accurately monitor changes in water level.

[0056] Based on the embodiment with the addition of a second water level monitoring device and a water injection device, it can be ensured that the water supplied from the supply tank 130 to the testing tank 110 is preheated within the supply tank 130, thereby ensuring that the temperature of the water inside the testing tank 110 can be maintained within a preset temperature range. This ensures a more stable preheating environment for biological samples inside the testing tank 110. At the same time, it can also avoid water disturbance caused by the simultaneous occurrence of water supply and outflow, ensuring that the water surface inside the supply tank 130 and the testing tank is calm, so that the water level monitoring results are always accurate, thereby ensuring the stable operation of the biological sample water bath 100.

[0057] Furthermore, in any of the above embodiments, the height of the replenishment water level B of the replenishment tank 130 is determined by using the example of setting a first design water level J1 and a second design water level J2 in the inspection tank 110 as an example. This replenishment water level B is located above the water replenishment channel 150. The volume space V1 of the replenishment tank 130 between the replenishment water level B and the center point of the water replenishment channel 150 is greater than the volume space V2 of the inspection tank 110 between the first design water level J1 and the second design water level J2. That is, the product of the vertical distance h1 between the replenishment water level B and the center point O of the water replenishment channel 150 and the surface area S1 of the replenishment tank 130 is greater than the product of the vertical distance h2 between the first design water level J1 and the second design water level J2 and the surface area S2 of the inspection tank 110.

[0058] Expressed as a formula:

[0059] h1*S1=V1>V2=h2*S2 (1)

[0060] After transforming the formula, we get:

[0061] h1 / h2>S2 / S1=(a2*b2) / (a1*b1) (2)

[0062] Therefore, we get

[0063] h1 / h2>a2 / a1 (3)

[0064] Wherein, a1 and b1 are the first and second side lengths of the supply box 130, respectively, and a2 and b2 are the third and fourth side lengths of the inspection box 110, respectively. The second side length b1 of the supply box 130 and the fourth side length b2 of the inspection box 110 are equal. The first side length a1 of the supply box 130 and the third side length a2 of the inspection box 110 are in the same direction or parallel to each other.

[0065] According to formula (3), the ratio of the vertical distance h1 between the replenishment water level B and the first design water level J1 to the vertical distance h2 between the first design water level J1 and the second design water level J2 is greater than the ratio between the third side length a2 of the inspection box 110 and the first side length a1 of the replenishment box 130.

[0066] Using the example of the biological sample water bath 100 with internal dimensions of 460×450×430mm for the test chamber 110, and the embodiment regarding the positional relationship between the first design water level J1, the second design water level J2, and the water supply channel 150, as described above. In this embodiment, the third side length a2 of the test chamber 110 is 460cm, and the first side length a1 of the supply chamber 130 is set to 100cm. Since the vertical distance h2 between the first design water level J1 and the second design water level J2 is 1cm, according to the above formula (3), the vertical distance h1 between the supply water level B and the center point O of the water supply channel 150 is >4.6cm, and the water level of the supply water level B is at a position 4.6cm above the center point O of the water supply channel 150. When the water level of the supply chamber 130 reaches the supply water level B, the water supply from the outside to the supply chamber 130 is suspended.

[0067] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A biological sample water bath, characterized in that, At least including: Adjacent and connected inspection chamber and supply chamber, heating pipe penetrating the bottom of the inspection chamber and supply chamber, water supply channel horizontally connected between the inspection chamber and supply chamber, and water supply switch device placed in the inspection chamber, the water supply channel being located above the heating pipe; The water replenishment switch device is connected to one of the ports of the water replenishment channel, and the size of the water replenishment switch device matches that port. The water replenishment channel is located above the design water level of the test chamber. The biological sample water bath further includes: a first water level monitoring device, which is electrically connected to the water replenishment switch device. The first water level monitoring device monitors the current water level of the test chamber, obtains the corresponding monitoring signal, and sends an execution signal to the water replenishment switch device to open or close the water replenishment channel.

2. The biological sample water bath according to claim 1, characterized in that, The design water level includes: a first design water level and a second design water level, wherein the first design water level is higher than the second design water level; The first water level monitoring device receives a monitoring signal indicating that the current water level of the test chamber is at the first design water level, and sends a signal to the water supply switch device to close the water supply channel; the first water level monitoring device receives a monitoring signal indicating that the current water level of the test chamber is at the second design water level, and sends an execution signal to the water supply switch device to open the water supply channel.

3. The biological sample water bath according to claim 1, characterized in that, The water replenishment switch device is connected to the outlet of the water replenishment channel located on one side of the inspection box, and the size of the water replenishment switch device matches that of the outlet.

4. The biological sample water bath according to claim 3, characterized in that, The water replenishment switch device includes: a water replenishment cover, which is disposed corresponding to the outlet. The diameter of the water replenishment cover is larger than the diameter of the outlet. The water replenishment cover is rotated to open or close the outlet.

5. The biological sample water bath according to claim 4, characterized in that, The water supply cover and the outlet are rotatably connected at the point above the outlet.

6. The biological sample water bath according to claim 4, characterized in that, The water replenishment switch device further includes: an electromagnet plate, which is fixed around the edge of the water replenishment cover beyond the outlet. The electromagnet plate is electrically connected to the first water level monitoring device. The edge of the outlet is made of a magnetic material, and the water replenishment cover is made of a lightweight material.

7. The biological sample water bath according to claim 6, characterized in that, The water replenishment switch device further includes: a sealing gasket, which is matched with the outlet and the water replenishment door cover respectively, and is attached to the side of the water replenishment door cover facing the outlet; The sealing gasket is an annular grooved soft gasket, the inner diameter of the sealing gasket is equal to the diameter of the outlet and corresponds to the edge of the outlet; the outer diameter of the sealing gasket is equal to the diameter of the water inlet cover. The electromagnet sheet is wrapped inside the annular groove of the sealing gasket.

8. The biological sample water bath according to claim 1, characterized in that, A partition is provided between the inspection box and the supply box, and a sealing ring is provided at the connection between the heating tube and the partition.

9. The biological sample water bath according to claim 1, characterized in that, The biological sample water bath further includes: a second water level monitoring device and a water injection device electrically connected, wherein the second water level monitoring device is electrically connected to the first water level monitoring device; the water inlet of the water injection device is located inside the supply tank. The second water level monitoring device receives the current water level monitoring signal of the supply tank and the switch signal of the water supply switch device issued by the first water level monitoring device, and sends a water injection switch signal to the water injection device.

10. The biological sample water bath according to claim 2, characterized in that, The replenishment water level of the replenishment tank is located above the water replenishment channel. The volume of the replenishment tank between the replenishment water level and the center point of the water replenishment channel is greater than the volume of the inspection tank between the first design water level and the second design water level.

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